This function comes from the basic function f(x) = x2 with the constant 5 added to the outside. This gives the basic function a vertical shift UP 5 units.
8 more that is 8+ four times a number is 4*X is -12: =-12 8+4*X=-12 to solve this equation subtract 8 from both sides. 8+4*X=-12 -8 -8 4*X=-20 divide by 4 on both sides. X=-5
